{ "id": "1207.0478", "version": "v1", "published": "2012-07-02T19:27:11.000Z", "updated": "2012-07-02T19:27:11.000Z", "title": "Weyl points and line nodes in gapless gyroid photonic crystals", "authors": [ "Ling Lu", "Liang Fu", "John D. Joannopoulos", "Marin Soljačić" ], "comment": "6 figures and 8 pages including the supplementary information", "journal": "Nature Photonics, 7, 294-299 (2013)", "doi": "10.1038/NPHOTON.2013.42", "categories": [ "cond-mat.mes-hall", "physics.optics" ], "abstract": "Weyl points and line nodes are three-dimensional linear point- and line-degeneracies between two bands. In contrast to Dirac points, which are their two-dimensional analogues, Weyl points are stable in the momentum space and the associated surface states are predicted to be topologically non-trivial. However, Weyl points are yet to be discovered in nature. Here, we report photonic crystals, based on the double-gyroid structures, exhibiting frequency-isolated Weyl points with intricate phase diagrams. The surface states associated with the non-zero Chern numbers are demonstrated. Line nodes are also found in similar geometries; the associated surface states are shown to be flat bands. Our results are readily experimentally realizable at both microwave and optical frequencies.", "revisions": [ { "version": "v1", "updated": "2012-07-02T19:27:11.000Z" } ], "analyses": { "keywords": [ "weyl points", "gapless gyroid photonic crystals", "line nodes", "associated surface states", "report photonic crystals" ], "tags": [ "journal article" ], "publication": { "journal": "Nature Photonics", "year": 2013, "month": "Apr", "volume": 7, "number": 4, "pages": 294 }, "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013NaPho...7..294L" } } }